class Calculayor:


    def  __init__(self,a,b):

        self.a = int(a)
        self.b = int(b)

    def jia(self):
        return self.a + self.b
    def jian(self):
        return self.a - self.b
    def cheng(self):
        return  self.a * self.b
    def chu(self):
        return self.a / self.b

c  = Calculayor(5,2)
print(c.jia())
print(c.jian())
print(c.cheng())
print(c.chu())